diff options
| author | Marti Bolivar <mbolivar@leaflabs.com> | 2011-05-04 13:20:20 -0400 |
|---|---|---|
| committer | Marti Bolivar <mbolivar@leaflabs.com> | 2011-05-04 13:31:53 -0400 |
| commit | 43b3ba82e692345883e168c57fde1e08d39c7064 (patch) | |
| tree | dd9194dd51d4482ebff71378bb7acc431bcdbcef | |
| parent | e7d5f4c167f063ca186bfa30f3ca72b1ca1a11aa (diff) | |
systick_timer_millis is volatile, not IO-mapped.
| -rw-r--r-- | libmaple/systick.c | 2 | ||||
| -rw-r--r-- | libmaple/systick.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/libmaple/systick.c b/libmaple/systick.c index 103893e..c04f4f3 100644 --- a/libmaple/systick.c +++ b/libmaple/systick.c @@ -28,7 +28,7 @@ #include "systick.h" -__io uint32 systick_timer_millis; +volatile uint32 systick_timer_millis; /** * @brief Initialize and enable SysTick. diff --git a/libmaple/systick.h b/libmaple/systick.h index 4654c5f..35b4cb9 100644 --- a/libmaple/systick.h +++ b/libmaple/systick.h @@ -73,7 +73,7 @@ typedef struct systick_reg_map { #define SYSTICK_CVR_TENMS 0xFFFFFF /** System elapsed time, in milliseconds */ -extern __io uint32 systick_timer_millis; +extern volatile uint32 systick_timer_millis; void systick_init(uint32 reload_val); void systick_disable(); |